Honda Civic Problem Report
Honda Civic Check Engine Light Due to Air Fuel Sensor Fault
The air/fuel sensor, located in the exhaust system, may be damaged by moisture in the exhaust resulting in illumination of the Check Engine Light. Replacing the damaged air/fuel sensor and updating the powertrain control module (PCM) software should correct this concern.
Engine light came on. Honda service diagnosed as Air Fuel Sensor gone bad. Testing, part and service cost $413.00. Really only problem after all these miles. - Visitor
Both sensors have been replaced the o2 is fine but the pre cat air/fuel sensor is showing as no...
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On certain models in colder climates the Check Engine light can set due to moisture in the Mani...
My air fuel sensor 1 heater system is malfunctioning